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| water purification Any of several processes in which undesirable impurities in water are removed or neutralized | |||
| Roster | |||
| تنقية المياه: 2 phrases in 1 subject |
| Environment | 2 |
|
| |||
| water purification Any of several processes in which undesirable impurities in water are removed or neutralized | |||
| Roster | |||
| تنقية المياه: 2 phrases in 1 subject |
| Environment | 2 |